18802438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 31299840

約数和(自身を除く): 12497402

約数列:

[1, 2, 19, 37, 38, 43, 74, 86, 311, 622, 703, 817, 1406, 1591, 1634, 3182, 5909, 11507, 11818, 13373, 23014, 26746, 30229, 60458, 218633, 254087, 437266, 494801, 508174, 989602, 9401219, 18802438]

約数ペア:

[(1, 18802438), (2, 9401219), (19, 989602), (37, 508174), (38, 494801), (43, 437266), (74, 254087), (86, 218633), (311, 60458), (622, 30229), (703, 26746), (817, 23014), (1406, 13373), (1591, 11818), (1634, 11507), (3182, 5909)]